Costin Stăncioi is a graduate of the Faculty of Theatre at UNATC “I. L. Caragiale” (Acting, 2024) and of the MA program in Film Acting at the same university. In 2025, he received multiple awards at the Young Actor Gala HOP, including Best Actor, as well as distinctions for stage presence, diction, and physical expression, alongside the “1/10 for Film” award at Transilvania IFF.

Since 2023, he has collaborated with numerous state and independent institutions in Bucharest, including Teatrul Metropolis, Teatrul Godot, Grivița 53, Teatrelli, and Asociația Hearth. Since 2025, he is an actor at Teatrul Dramatic “Fani Tardini” Galați, where he debuted as Feste in Twelfth Night, directed by Andrei Huțuleac.

In film, he has appeared in short films directed by Alexandru Ciochia, Alexandru G. Fiț, and Andrei Tache-Codreanu, as well as in the international production Făt-Frumos, filmed in Paris in collaboration with Saint-Denis Université. He also appeared in the feature film La Snagov, directed by Cristian Comeagă.